Improvement in time-locks



Z Sheets-r Sheet 1. P. B. HENNESSY.

TIMELOCK.

$10,170,553, Patented m. 30,1 75.

humnlor flaw QAMQ/ 2 sheds-sheet z.

P.B.-HENNESS-Y.

TIME-L 00 K.

Wflnasses. 1111) 011101 WM 6% N. PETERS, PHOTO-LITHOGRAPHER, WASHINGTON,D C

Patented. Names, 1875.

UNT ED STA Es PATENT OFFICE.

PATRICK BRIEN HEnN ssY, OF HAMILTON, CANADA.

IMPROVEMENT. I,N TIME-LOCKS.

Specification forming part of Letters Patent No. 170,558 dated November30, 1875; applicatioufiled August 24, 1875.

To'all whom it may concern:

Be it known that I, PATRIoK BRIEN HEN: NESSY, of the city of Hamilton,in the county of -Went-worth, in the Province of Ontario, Dominion ofCanada, have invented certain new and useful Improvements in Safe Time-Lo'cks and I do hereby declare that the following is a full, clear, andexact description of the construction andoperation of the same,reference being had to the accompanying drawings forming a part of thisspecification.

Figure 1, Sheet 1, represents the inside of a safe-door with my lockaffixed to the same. Fig. 2 is a side or edge view of the door. Fig. 3is the lock detached with the cover or faceplate removed. Fig. 4 is anend view of the same. Fig. 5 is a top view with a portion broken away.Fig. 6 is a vertical section at the line as w:

A, Fig. 1, represents my lock secured to the inside of a safe-door, S,by means of four screws, U U U U. It can be easily fastened to the doorof any safe or vault without removing the looks upon them. Inside of thelock, and a little to one side, is secured a time-movement, B. Anymovement which will keep correct time will answer. O is a dial affixedto a small shaft, to. lt'has cut on its face a series of figures,marking hours. Any number can be marked on it up'to one hundred. It isprovided with an index-hand, D, the purpose of which will be shownhereafter. E is a connecting-lever, provided with a horizontal arm, g,and an upright arm, g, the said portion g being secured on a pin, f. Itsextreme outer end is provided with a horizontal pin, 01, which is fordroppinginto a notched wheel, as will be shown hereafter. It is alsoprovided with a pin, 0, projecting horizontally from it, which dropsinto a notch, c, of a disk, b, which is affixed to .the shaft (1alongside of .a gear time-wheel, F, on the same shaft. On the free endof said lever E is fastened a slotted guide, m, which is made to pass oneach side of the frame of the timemovement, for the purpose of steadyingthe said lever. G is a wheel, having a plain outside edge, and has anotch cut in its outer circumference, for the purpose of allowing thepin 61 of the lever E to drop into it at a certain time, which has theeffect of pushing back the lever to open the look at the set time. H isa lock-bolt, affixed to the pin J. Whenv the bolt .is up it isoppositethe bolt-hole f in the end of the look, as shown in Figs. 3 and 4.. Thesafe or vault door is always looked when the bolt is in the horizontalposition, as shown, and open when the said bolt drops. It is providedwith an upward arm, I, on which the part 9 of the lever E operates toraise the bolt H when itis down. J is the pin affixed to the back of thelock upon which the bolt H revolves. K is a pendent pawl, affixed uponpin f. Its lower end is constructed with a catch, 1, which is made tohook under a projection, i of the cylindrical portion h of the bolt Hfor holding up the said bolt to its place opposite the bolt hole oropening f in the end of the lock. j is a small pin inserted in thevertical party of the lever E, the object of which is as follows: whenthe lever E is pushed back the said pin j presses against the pawl K andreleases its catch 1" from the bolt H, when the said bolt drops down byits own weight, as shown in dotted lines in Fig. 3. L is a tongue,affixed to the sliding bar 'I of the safe-door bolt immediately oppositethe boltholef in the end of the lock, and into which it enters (when thelock-bolt H drops in the position shown in dotted lines in Fig. 3) whenthe sliding bar T and bolts M are thrown back by means of a turn of theoutside handle N. Z l l l are circular collars tightly surrounding thebolts M. Said collars are made to Work in slots cut into the fiatsliding bar '1, so that when the said bar is moved by the action of theoutside handle the circular bolts M and and the tongue L move with it,and it will be observed that the said sliding bar with the boltsattached cannot be moved back to open the safe-door, as the tongue Lwill come in contact with the end of the locking bolt H, whichcompletely blocks up the bolt-hole fiu the lock; the safe-door,therefore, cannot be opened until the time is up for which it was set.At that time a small pin, 0, of the lever E drops into the notch c ofthe small wheel or disk I), which allows the pin d at the end of thesaid lever to simultaneously drop into the notch c of the larger wheelG, which pushes the lever back and causes the pin j to strike againstthe pawl K, the backward movement of which releases its catch from thecylindrical portion of thelocking-bolt when: it (the boltH) dropsLTheboltsM can. thenall be thrown. back by a turn of the handle, as thetongue L can then enter unobstructed into the look through the openingf. O is a spring, affixed to the arm 9 of the lever E,andheld in placeby the pin P. Its object is to push the said lever forward. 0 is asimilar spring, attached to the. upper end of the pawl K and held inplace by the of pushing the said pawl forward, so thatit may.alwayscatch and hold up the bolt H until released. by the lever E. Q isa shaft, upon. which the spring for motive power is fastened, whichis onthe underside or behind the wheel G, and not necessarytoibe shown onthedrawing. A knob,Q,isfastened tothe outer end a of saidxsbaft Q bymeans of a small screw, for

the purpose. of convenientlyturning. and settingthe handD toganydesiredhour. Itlisthe faceplate of the lock, secured toit by means ofthe two screwspp. I

Intheoperation of the device the firstthing to be done is to set thehand D, by means of ,thekuoh Q, to any hour hour marked; onthe dialqO atwhich. the door is required to be opened. This, of course, is done whilethe door is open. Theidoor is thenclosed and the boltsMare shotintotheir reccssesby a turn of l the handleN. This actionalsowithdraws thetongue L from theiopeningf in the lock, and thebolt H rises and coversthelopening therebylocking the safe-door. The bolts M and tongue Lcannot be moved back until the hour arrives that it was set to. When theset hourof opening arrives, the pin don the connectinglever E dropsintoithenotch c of the wheel G, and forces thesaid lever back againstthe pawl K, which releases its hold of the locking-bolt H, and allowstheend of said pin P, and it is for the purpose bolt to drop, as shown in,dotted lines, Fig. leaning the-openingf freefor the tongue L to enterwhen the outside handle is turned, thus a. allowing all the bolts M tobe drawn back to open the door.

Thegear-wheels may-be p'laced in the most convenient position foroperating the device.

I maynow mention, what should have been stated above,that s is a flatspring secured to the arm g of the lever E, and made to pass into anotch in the arm g of the same lever, for the .purposeiofassistingtopusn downward the outer end of the said lever E, so that thepin d will not fail to drop into the notch a of the wheel G, and alsothe pin 0 to drop into the notch c of thedisk b.

What I claim as. my inventiomand desire to. secure by Letters Patent,is-- a 1. In combination w'th. atime-movement,

the lever E, provided with pins (1 oj, armsg and g,yan.d guidem, hinged:on. the pin f and acted upon by springs O. and s, wheelsG and It);siubstantially as and for, the purpose specie a i i 2. In combinationwith] a time-movement, the-arrangementofthe wheelG, with. notchpc, andwheel b, with notch c, for [operatingthe lever E andpawl;K,substantially.asand for the purpose specified.

the pivoted locking-bolt H, provided witharm actuated by the lever E andthe pawl K, subk stantiallyasand for thepurpose described.

Dated at Hamilton, Ontario, Canada, this a 21st day of April, 1875.

PATRICK BRIEN HENNEss In presence of-- WM. BRUCE, P. L. SGBIVEN.

3. In combination with a. time-movement,

